Data Sheet
WHITE LED STEP-UP CONVERTER
AP3019A
Pin Configuration
K/KT Package
(SOT-23-6/TSOT-23-6)
Pin 1 Dot by Marking
VIN
SW
6
5
4
1
2
3
VOUT
CTRL
GND
FB
Figure 2. Pin Configuration of AP3019A (Top View)
Pin Description
Pin Number Pin Name
Function
Switch pin. Connect external inductor
Ground
1
2
3
SW
GND
FB
Voltage feedback pin. Reference voltage is 200mV
Shutdown and dimming pin. Connect to 1.8V or higher to enable
device; Connect to 0.5V or less to disable device; Connect to a PWM
signal to achieve LEDs brightness dimming
4
CTRL
5
6
VOUT
VIN
Output pin. Connect to the cathode of internal Schottky diode
Input supply pin. Must be connected to a local bypass capacitor
Mar. 2010 Rev. 1.7
BCD Semiconductor Manufacturing Limited
2
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
